Function 関数

protocol_addProperty(_:_:_:_:_:_:)

Adds a property to a protocol that is under construction. あるプロトコルをある建設中のプロトコルに加えます。

Declaration 宣言

func protocol_addProperty(_ proto: Protocol, 
                        _ name: UnsafePointer<CChar>, 
                        _ attributes: UnsafePointer<objc_property_attribute_t>?, 
                        _ attributeCount: UInt32, 
                        _ isRequiredProperty: Bool, 
                        _ isInstanceProperty: Bool)

Parameters パラメータ

proto

The protocol you want to add a property to.

name

The name of the property you want to add.

attributes

An array of property attributes.

attributeCount

The number of properties in attributes.

isRequiredProperty

A Boolean indicating whether the property’s accessor methods are required methods of the proto protocol. If true, the property’s accessor methods are required methods; if false, the property’s accessor methods are optional methods.

isInstanceProperty

A Boolean indicating whether the property’s accessor methods are instance methods. If true, the property’s accessor methods are instance methods. true is the only value allowed for a property. As a result, if you set this value to false, the property will not be added to the protocol.

Discussion 解説

The protocol you want to add the property to must be under construction—allocated but not yet registered with the Objective-C runtime (via the objc_registerProtocol(_:) function).

See Also 参照

Working with Protocols プロトコルを扱う